Clamping jaw
By designing and improving the jaw clamping unit, the problem of the three jaws needing to exit the equipment and wait has been solved, resulting in a more efficient workpiece tightening process, shorter cycle time, increased production efficiency, and reduced equipment costs.
Patent Information
- Application Number
- CN202423152371.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-19
AI Technical Summary
In existing concentric machine automated core-aligning equipment, the three grippers need to exit the equipment and wait after placing the workpiece, resulting in a long cycle time and affecting production efficiency.
Design a chuck including a first clamping unit, which consists of a cylinder, a first clamping arm, a second clamping arm, a transfer unit, a first fixing part, and a second fixing part. It can remove the workpiece from the equipment when the bolt tightening gun rises, avoiding extra waiting.
The cycle time of the workpiece tightening process was shortened from 13 seconds to 7.8 seconds, which improved production efficiency and reduced the number of equipment and cost investment.
Smart Images
Figure CN223604254U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of clamping claw, especially a clamping claw. BACKGROUND
[0002] As Figure 1 shown, in the compressor manufacturing process, need to use the concentric machine automation core equipment to workpiece 1 is tightened, workpiece 1 usually includes through the pre-tightening of multiple bolts lower cylinder cover 101, cylinder 102 and upper cylinder cover 103, cylinder 102 includes convex part 1021 and round part 1022. Figure 2 And Figure 3 As shown, the concentric machine automation core equipment includes clamping claw 2, operation platform 3, bolt tightening gun 4 and drive mechanism, clamping claw 2 is double three claw form, clamping claw 2 includes connecting plate 201, two three clamping claws 202 and two cylinders, the both ends of one side of connecting plate 201 are installed one three clamping claw 202 respectively, and each three clamping claw 202 is equipped with a cylinder, the cylinder of clamping claw 2 is used for driving piston rod linear reciprocating motion and then making three clamping claws 202 open or clamp tightly, and the cylinder of clamping claw 2 is a kind of commonly used power supply component, is used for driving piston rod linear reciprocating motion and then making three clamping claws 202 open or clamp tightly. Figure 1 The cylinder 102 of compressor is not the same kind of cylinder, the cylinder of clamping claw 2 is a kind of commonly used power supply component, is used for driving piston reciprocating motion in cylinder 102 and then compressing the gas in cylinder 102, the other side of connecting plate 201 is used for connecting mechanical arm, and mechanical arm is used to drive connecting plate 201 to move, bolt tightening gun 4 and drive mechanism are connected, and drive mechanism is used to drive bolt tightening gun 4 to move up and down and tighten bolt.
[0003] The operation process of concentric machine automation core equipment is as follows: referring to Figure 1 、 Figure 4 And Figure 5 As shown, two three clamping claws 202 are first clamped to one workpiece 1 respectively, three clamping claws 202 are usually clamped in the side position of the round part 1022 of cylinder 102, in order to make the figure simple, Figure 5 In the figure, lower cylinder cover 101 is not shown, referring to Figure 3 And Figure 5As shown, one three-jaw 202 places the workpiece 1 on the workbench 3 and then exits the device to wait; the driving mechanism first drives the bolt tightening gun 4 to descend, then tightens and reinforces the pre-tightened bolt, and finally moves the bolt tightening gun 4 upwards to the initial position; the waiting three-jaw 202 enters the device, moves downwards to clamp the workpiece 1, and then takes the workpiece 1 out of the device; the mechanical arm drives the connecting plate 201 to rotate, so that the other three-jaw 202 and the workpiece 1 clamped thereby enter the device, the other three-jaw 202 opens to place the workpiece 1 on the workbench 3 and then exits the device to wait; the driving mechanism first drives the bolt tightening gun 4 to descend, then tightens and reinforces the pre-tightened bolt, and finally moves the bolt tightening gun 4 upwards to the initial position; the other three-jaw 202 enters the device, moves downwards to clamp the workpiece 1, and then takes the workpiece 1 out of the device; the mechanical arm drives the two three-jaws 202 to move to the material placing position, the two three-jaws 202 open to place the tightened and reinforced workpiece 1; the mechanical arm drives the two three-jaws 202 to move to the material taking position, and each three-jaw 202 clamps one workpiece 1 respectively, and then repeats the above steps.
[0004] As can be seen from the above, in order to prevent the three-jaw 202 and the bolt tightening gun 4 from interfering and colliding, the three-jaw 202 needs to exit the device to wait after placing the workpiece 1, and the three-jaw 202 can enter the device to grab the workpiece 1 only after the bolt tightening gun 4 returns to the initial position, which results in a slow pace of the process, and the pace time is usually 13 seconds. Technical problem
[0005] The utility model provides a kind of dog, to solve the technical problem that three-jaw is placed workpiece and then exits to the device to wait.
[0006] To solve the above technical problems, the utility model provides a kind of dog, including first clamping unit, the first clamping unit includes cylinder, first clamping arm, second clamping arm, adapter unit, first fixed part and second fixed part;
[0007] The cylinder includes cylinder body and piston rod, and the cylinder body is provided with a fixing hole for fixing;One end of the piston rod is arranged outside the cylinder body, and the other end is arranged in the cylinder body;
[0008] One end of the first clamping arm and one end of the second clamping arm are connected to one end of the piston rod through the adapter unit, and the piston rod is used to drive the first clamping arm and the second clamping arm to open or clamp;The first fixed part is arranged on the first clamping arm, and the second fixed part is arranged on the second clamping arm, and the first fixed part and the second fixed part are oppositely arranged and used to clamp a workpiece.
[0009] Preferably, the adapter unit comprises a first slider, a second slider, a fixed block, a first cam, a second cam and a connecting rod; the fixed block is fixed at one end of the cylinder body, the fixed block is provided with a sliding slot, a first through hole and a second through hole; one end of the first slider is connected with one end of the first clamping arm, the other end of the first slider is installed in the sliding slot and connected with one end of the first cam; one end of the second slider is connected with one end of the second clamping arm, the other end of the second slider is installed in the sliding slot and connected with one end of the second cam; the other end of the first cam is hinged with one end of the connecting rod; the other end of the second cam is hinged with the other end of the connecting rod; the first cam penetrates through the first through hole, and the second cam penetrates through the second through hole; one end of the piston rod is connected with the middle position of the connecting rod.
[0010] Preferably, the number of the first fixed parts is two, and the number of the second fixed part is one; the two first fixed parts are arranged on the first clamping arm in a spaced manner.
[0011] Preferably, the second fixed part is arranged on the perpendicular bisector of the two first fixed parts.
[0012] Preferably, the claw further comprises a connecting plate, the cylinder body is fixed on one end of the first side of the connecting plate through the fixed hole and the bolt, and the second side of the connecting plate is provided with a connecting head for connecting a mechanical arm.
[0013] Preferably, the first side and the second side are parallel.
[0014] Preferably, the other end of the first side is provided with the first clamping unit.
[0015] Preferably, the connecting head is arranged on the perpendicular bisector of the two first clamping units.
[0016] Preferably, the part of the first fixed part in contact with the workpiece is in a sharp corner shape.
[0017] Preferably, the first fixed part is fixed on the first clamping arm through a threaded hole, a pin hole, a bolt and a pin.
[0018] The utility model provides a kind of dog, including first clamping unit, first clamping unit includes cylinder, first clamping arm, second clamping arm, adapter unit, first fixed part and second fixed part.The dog can be used in concentric machine automation core adjusting equipment, after dog clamps workpiece and places workpiece on operation platform, dog can stop action and wait in equipment, when bolt tightening gun tightens reinforcement to workpiece, simultaneously with the rising of bolt tightening gun or when bolt tightening gun rises to initial position, dog can act and take out workpiece from equipment, dog no longer needs to move to equipment outside and waits after bolt tightening gun operation is completed to act again, so that the tightening procedure of the beat of lower cylinder cover, cylinder and upper cylinder cover in drawing can be reduced to 7.8 seconds, and production efficiency is obviously improved;In the case where output is unchanged, the number of concentric machine automation core adjusting equipment can be reduced, and equipment cost investment is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a kind of structure schematic diagram of workpiece in prior art.
[0020] Figure 2 It is a kind of structure schematic diagram of dog in prior art.
[0021] Figure 3 It is a kind of structure schematic diagram of operation platform and bolt tightening gun of concentric machine automation core adjusting equipment in prior art.
[0022] Figure 4 It is Figure 2 Structure schematic diagram of dog clamping two workpieces in it.
[0023] Figure 5 It is Figure 4 Top view schematic diagram of it.
[0024] Figure 6 It is a kind of structure schematic diagram of dog provided by an embodiment of the utility model.
[0025] Figure 7 It is Figure 6 Sectional view schematic diagram when dog in it is opened.
[0026] Figure 8 It is Figure 6 Sectional view schematic diagram when dog in it clamps workpiece.
[0027] Figure 9 It is a kind of structure schematic diagram of dog provided by an embodiment of the utility model.
[0028] Figure 10 It is Figure 9 Structure schematic diagram when first clamping unit in it clamps workpiece.
[0029] Figure 11 It isFigure 10 front view schematic diagram of the utility model.
[0030] [The following signs are explained]:
[0031] Figures 1-5 : workpiece-1, claw-2, work platform-3, bolt tightening gun-4;
[0032] Lower cylinder cover-101, cylinder-102, upper cylinder cover-103;
[0033] Protruding part-1021, round part-1022;
[0034] Connecting plate-201, three clamping jaws-202;
[0035] Figures 6-11 : first clamping unit-11;
[0036] Cylinder-111, first clamping arm-112, second clamping arm-113, adapter unit-114, first fixed part-115, second fixed part-116, connecting plate-117;
[0037] Cylinder body-1111, piston rod-1112, fixed hole-1113;
[0038] First sliding block-1141, second sliding block-1142, fixed block-1143, first cam-1144, second cam-1145, connecting rod-1146, sliding groove-1147;
[0039] Threaded hole-1151, pin hole-1152;
[0040] Connecting head-1171. DETAILED DESCRIPTION
[0041] In order to make the purpose, advantage and feature of the utility model more clear, the following in combination with the drawings to the utility model proposes a claw to make further detailed description.It is explained that, the drawings all adopt very simplified form and all use non-precise proportion, only to facilitate, clear and assist the purpose of the utility model embodiment.
[0042] In the description of the utility model, the terms "first", "second" and the like qualifiers are added for the convenience of description and reference, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.Therefore, the features qualified with "first", "second" and the like can explicitly or implicitly include one or more of the features.
[0043] As Figures 6-8As shown, the embodiment provides a claw, which comprises a first clamping unit 11, the first clamping unit 11 comprising a cylinder 111, a first clamping arm 112, a second clamping arm 113, an adapter unit 114, a first fixing part 115 and a second fixing part 116; the cylinder 111 comprises a cylinder body 1111 and a piston rod 1112, the cylinder body 1111 being provided with a fixing hole 1113 for fixing; one end of the piston rod 1112 is arranged outside the cylinder body 1111, and the other end is arranged inside the cylinder body 1111; one end of the first clamping arm 112 and one end of the second clamping arm 113 are connected with one end of the piston rod 1112 through the adapter unit 114, and the piston rod 1112 is used to drive the first clamping arm 112 and the second clamping arm 113 to open or clamp; the first fixing part 115 is arranged on the first clamping arm 112, and the second fixing part 116 is arranged on the second clamping arm 113, and the first fixing part 115 and the second fixing part 116 are oppositely arranged and used to clamp a workpiece.
[0044] The embodiment provides a claw, which comprises a first clamping unit 11, the first clamping unit 11 comprising a cylinder 111, a first clamping arm 112, a second clamping arm 113, an adapter unit 114, a first fixing part 115 and a second fixing part 116. The claw can be used in a concentric machine automatic core adjusting device. After the claw clamps a workpiece and places the workpiece on a workbench, the claw can stop moving and wait in the device. When a bolt tightening gun tightens the workpiece, the claw can move and take out the workpiece from the device at the same time as the bolt tightening gun rises or after the bolt tightening gun rises to the initial position. The claw no longer needs to move out of the device to wait for the bolt tightening gun to complete the operation before moving again. This can make the production process more efficient and reduce the number of concentric machine automatic core adjusting devices and the cost of equipment investment. Figure 1 The tightening process of the middle lower cylinder head 101, the cylinder 102 and the upper cylinder head 103 is reduced to 7.8 seconds, which significantly improves the production efficiency; in the case of unchanged production, the number of concentric machine automatic core adjusting devices can be reduced, and the investment cost of equipment can be reduced.
[0045] Preferably, as Figure 6 and Figure 7As shown in the figure, the adapter unit 114 includes a first slider 1141, a second slider 1142, a fixed block 1143, a first cam 1144, a second cam 1145, and a connecting rod 1146; the fixed block 1143 is fixed at one end of the cylinder body 1111, and the fixed block 1143 is provided with a sliding groove 1147, a first through hole, and a second through hole; one end of the first slider 1141 is connected with one end of the first clamping arm 112, and the other end of the first slider 1141 is installed in the sliding groove 1147 and connected with one end of the first cam 1144; one end of the second slider 1142 is connected with one end of the second clamping arm 113, and the other end of the second slider 1142 is installed in the sliding groove 1147 and connected with one end of the second cam 1145; the other end of the first cam 1144 is hinged with one end of the connecting rod 1146; the other end of the second cam 1145 is hinged with the other end of the connecting rod 1146; the first cam 1144 penetrates through the first through hole, and the second cam 1145 penetrates through the second through hole; one end of the piston rod 1112 is connected with the middle position of the connecting rod 1146. The adapter unit 114 can convert the linear motion of the piston rod 1112 into the linear motion of the first slider 1141 and the second slider 1142, so as to make the first clamping arm 112 and the second clamping arm 113 open or clamp. In other embodiments, the adapter unit 114 can be a scissor structure, which can also convert the linear motion of the piston rod 1112 into the linear motion of the first slider 1141 and the second slider 1142.
[0046] As shown in the figure, the first fixed part 115 is provided with a first clamping arm 112, and the second fixed part 116 is provided with a second clamping arm 113. Figure 6 and Figure 7 As shown in the figure, the number of the first fixed part 115 is two, and the number of the second fixed part 116 is one; two first fixed parts 115 are arranged on the first clamping arm 112. Arranging two first fixed parts 115 can improve the clamping effect of the claw. As shown in the figure, Figure 5 、 Figure 10 and Figure 11 The claw before and after improvement can have the same or different grabbing positions of the workpiece; in order to make the figure simple, Figure 10 and Figure 11 The lower cylinder cover and the upper cylinder cover are not shown, and only the cylinder is shown. In other embodiments, the number of the first fixed part 115 and the second fixed part 116 can be adjusted according to the shape and size of the workpiece.
[0047] As shown in the figure, the first fixed part 115 is provided with a first clamping arm 112, and the second fixed part 116 is provided with a second clamping arm 113. Figure 7 As shown in the figure, the second fixed part 116 is arranged on the perpendicular bisector of the two first fixed parts 115, which can improve the clamping effect of the claw. In other embodiments, the second fixed part 116 can not be on the perpendicular bisector of the two first fixed parts 115.
[0048] Preferably, as shown in Figures 9-11 the claw further comprises a connecting plate 117, the cylinder 1111 is fixed on one end of the first side of the connecting plate 117 through the fixing hole 1113 and a bolt, and a connecting head 1171 for connecting a mechanical arm is arranged on the second side of the connecting plate 117. The mechanical arm and the connecting plate 117 can be quickly connected through the connecting head 1171. The connecting head 1171 can be a flange or a structure similar to a flange.
[0049] Preferably, as shown in Figure 10 the first side and the second side are parallel, so as to facilitate the installation of the first clamping unit 11 on the first side.
[0050] Preferably, as shown in Figure 6 and Figure 9 the other end of the first side is provided with the first clamping unit 11. Figure 2 is a claw in the prior art comprising two three-jaw claws. Figure 9 The left end of the connecting plate 117 in Figure 2 two three-jaw claws can be replaced by one first clamping unit 11, or two three-jaw claws can be replaced by two first clamping units 11.
[0051] Preferably, as shown in Figure 6 and Figure 10 the connecting head 1171 is arranged on the perpendicular bisector of the two first clamping units 11, so as to improve the balance and stability of the claw.
[0052] Preferably, as shown in Figure 7 and Figure 8 the part of the first fixing part 115 in contact with the workpiece is in the shape of a sharp corner. The first fixing part 115 can tightly clamp the workpiece through the sharp corner, preventing the workpiece from falling off.
[0053] Preferably, as shown in Figure 7 the first fixing part 115 is fixed on the first clamping arm 112 through a threaded hole 1151, a pin hole 1152, a bolt and a pin, so as to prevent the first fixing part 115 from loosening. Similarly, the second fixing part 116 can also be fixed on the second clamping arm 113 through a threaded hole 1151, a pin hole 1152, a bolt and a pin.
[0054] In summary, the utility model provides a kind of dog, including first clamping unit 11, first clamping unit 11 includes cylinder 111, first clamping arm 112, second clamping arm 113, adapter unit 114, first fixed part 115 and second fixed part 116.The dog can be used in concentric machine automation core adjusting equipment, after dog clamps workpiece and places workpiece on work platform, dog can stop action and wait in equipment, when bolt tightening gun is tightened and reinforced to workpiece, while bolt tightening gun rises or when bolt tightening gun rises to initial position, dog can act and take out workpiece from equipment, dog no longer needs to move to equipment outside and waits after bolt tightening gun operation is completed to act again, so it can make Figure 1 The tightening procedure of middle lower cylinder cover 101, cylinder 102 and upper cylinder cover 103 is reduced to 7.8 seconds, and the production efficiency is obviously improved; in the case that the yield is unchanged, the number of concentric machine automation core adjusting equipment can be reduced, and the equipment cost investment is reduced.
[0055] The above description is only the description of the preferred embodiment of the utility model, and does not limit the scope of the utility model, and any change or modification made by the ordinary skilled in the art according to the above disclosure belongs to the protection scope of the utility model.
Claims
1. A type of chuck, characterized in that, It includes a first clamping unit, which includes a cylinder, a first clamping arm, a second clamping arm, a connecting unit, a first fixing part, and a second fixing part; The cylinder includes a cylinder body and a piston rod. The cylinder body is provided with a fixing hole for fixing. One end of the piston rod is located outside the cylinder body, and the other end is located inside the cylinder body. One end of the first clamping arm and one end of the second clamping arm are connected to one end of the piston rod through the adapter unit. The piston rod is used to drive the first clamping arm and the second clamping arm to open or clamp. The first fixing part is disposed on the first clamping arm and the second fixing part is disposed on the second clamping arm. The first fixing part and the second fixing part are disposed opposite to each other and are used to clamp the workpiece.
2. A gripper as described in claim 1, characterized in that, The adapter unit includes a first slider, a second slider, a fixing block, a first cam, a second cam, and a connecting rod; the fixing block is fixed to one end of the cylinder body, and the fixing block is provided with a sliding groove, a first through hole, and a second through hole; one end of the first slider is connected to one end of the first clamping arm, and the other end of the first slider is installed in the sliding groove and connected to one end of the first cam; one end of the second slider is connected to one end of the second clamping arm, and the other end of the second slider is installed in the sliding groove and connected to one end of the second cam; the other end of the first cam is hinged to one end of the connecting rod; the other end of the second cam is hinged to the other end of the connecting rod; the first cam passes through the first through hole, and the second cam passes through the second through hole; one end of the piston rod is connected to the middle position of the connecting rod.
3. A gripper as described in claim 1, characterized in that, There are two first fixing parts and one second fixing part; the two first fixing parts are arranged at intervals on the first clamping arm.
4. A gripper as described in claim 3, characterized in that, The second fixing part is disposed on the perpendicular bisector of the two first fixing parts.
5. A gripper as described in claim 1, characterized in that, The gripper also includes a connecting plate. The cylinder is fixed to one end of the first side of the connecting plate through the fixing hole and bolts. A connector for connecting the robotic arm is provided on the second side of the connecting plate.
6. A chuck as described in claim 5, characterized in that, The first side and the second side are parallel.
7. A gripper as described in claim 5, characterized in that, The first clamping unit is provided at the other end of the first side.
8. A chuck as described in claim 7, characterized in that, The connector is positioned on the perpendicular bisector of the two first clamping units.
9. A gripper as described in claim 1, characterized in that, The part of the first fixing part that contacts the workpiece is a sharp angle.
10. A chuck as described in claim 1, characterized in that, The first fixing part is fixed to the first clamping arm through threaded holes, pin holes, bolts and pins.